commonly known as "if it exist, there is a porn of it" when in reality the rule is "if it will rape your childhood, there is a porn of it", therefore pr0nyou want will never exist, but there will always be Goof Troupe porn somewhere in the interwebs ether

From 7chan. Often users will take the miccy and send things gross, such as 100+ adult pornography, or some sicko would say "CHILDREN UNDER 10! RULE 34, GOOO" often with an awful lot of spam to show how stupid they actually are.